* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: #f5f7fa;
  color: #111820;
}

header {
  background: #ffffff;
  padding: 15px 8%;
  box-shadow: 0 2px 15px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  width: 180px;
}

.navbar ul {
  display: flex;
  list-style: none;
  gap: 30px;
}

.navbar a {
  text-decoration: none;
  color: #111820;
  font-weight: bold;
}

.navbar a:hover {
  color: #8cc900;
}

.hero {
  min-height: 85vh;
  background: linear-gradient(135deg, #111820 45%, #8cc900 45%);
  display: flex;
  align-items: center;
  padding: 0 8%;
  color: white;
}

.hero-content {
  max-width: 650px;
}

.hero h1 {
  font-size: 52px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 20px;
  line-height: 1.6;
  margin-bottom: 30px;
}

.btn {
  background: #8cc900;
  color: #111820;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
}

.section {
  padding: 75px 8%;
  text-align: center;
}

.section h2 {
  font-size: 36px;
  margin-bottom: 35px;
}

.cards {
  display: flex;
  justify-content: center;
  gap: 25px;
  flex-wrap: wrap;
}

.card {
  background: white;
  width: 310px;
  padding: 35px;
  border-radius: 16px;
  box-shadow: 0 5px 25px rgba(0,0,0,0.08);
  border-top: 5px solid #8cc900;
}

.card h3 {
  margin-bottom: 15px;
  color: #111820;
}

.card p {
  line-height: 1.6;
}

.sobre {
  background: #111820;
  color: white;
}

.sobre h2 {
  color: #8cc900;
}

.sobre p {
  max-width: 850px;
  margin: auto;
  font-size: 18px;
  line-height: 1.7;
}

.contato form {
  max-width: 600px;
  margin: 30px auto 0;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contato input,
.contato textarea {
  padding: 15px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 16px;
}

.contato textarea {
  height: 140px;
}

.contato button {
  background: #8cc900;
  color: #111820;
  border: none;
  padding: 15px;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
}

.contato button:hover {
  background: #111820;
  color: white;
}

.whatsapp {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: #8cc900;
  color: #111820;
  padding: 15px 22px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 5px 20px rgba(0,0,0,0.25);
}

footer {
  background: #111820;
  color: white;
  text-align: center;
  padding: 20px;
}

@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 20px;
  }

  .navbar ul {
    flex-direction: column;
    text-align: center;
  }

  .hero {
    background: #111820;
    text-align: center;
  }

  .hero h1 {
    font-size: 36px;
  }
}

.contato-info {
  margin-top: 30px;
  font-size: 18px;
}

.contato-info p {
  margin: 15px 0;
}

.contato-info a {
  color: #8cc900;
  text-decoration: none;
  font-weight: bold;
}

.contato-info a:hover {
  text-decoration: underline;
}

.contato form {
  background: #fff;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 5px 25px rgba(0,0,0,0.08);
}